Assignee
BERKMAN LOUIS CO
US·88 granted patents·2 pending applications·2,859 citations·filing 1988–2015
Top patents by PatentIndex Score
90 records- 0198US6354024B1Snowplow mountBERKMAN LOUIS CO·Filed 1999·Granted Mar 12, 2002·90 cites·53 claims
- 0294US6618964B2Snowplow mountBERKMAN LOUIS CO·Filed 2002·Granted Sep 16, 2003·47 cites·34 claims
- 0394US6220532B1Mount and feeder arrangement for a precision placement spreaderBERKMAN LOUIS CO·Filed 1999·Granted Apr 24, 2001·131 cites·39 claims
- 0493US6594923B1Snowplow mountBERKMAN LOUIS CO·Filed 2001·Granted Jul 22, 2003·51 cites·60 claims
- 0593US6564479B1Plastic moldboard plowBERKMAN LOUIS CO·Filed 2000·Granted May 20, 2003·54 cites·62 claims
- 0691US5061022ADoor closing mechanismBERKMAN LOUIS CO·Filed 1990·Granted Oct 29, 1991·81 cites·25 claims
- 0790US6652990B2Corrosion-resistant coated metal and method for making the sameBERKMAN LOUIS CO·Filed 2002·Granted Nov 25, 2003·36 cites·40 claims
- 0890US6273729B1Light harness connectorBERKMAN LOUIS CO·Filed 2000·Granted Aug 14, 2001·59 cites·15 claims
- 0989US7117617B2Snowplow mountBERKMAN LOUIS CO·Filed 2003·Granted Oct 10, 2006·31 cites·45 claims
- 1089US6861159B2Corrosion-resistant coated copper and method for making the sameBERKMAN LOUIS CO·Filed 2002·Granted Mar 1, 2005·16 cites·44 claims
- 1189US5947391APrecision placement spreaderBERKMAN LOUIS CO·Filed 1998·Granted Sep 7, 1999·90 cites·49 claims
- 1289US5429882ABuilding material coatingBERKMAN LOUIS CO·Filed 1994·Granted Jul 4, 1995·35 cites·37 claims
- 1387US7114270B2Plow mounting apparatus and methodBERKMAN LOUIS CO·Filed 2003·Granted Oct 3, 2006·28 cites·58 claims
- 1487US7045221B2Corrosion-resistant coated copper and method for making the sameBERKMAN LOUIS CO·Filed 2004·Granted May 16, 2006·13 cites·29 claims
- 1587US6265829B1Multiplex light harnessBERKMAN LOUIS CO·Filed 2000·Granted Jul 24, 2001·71 cites·55 claims
- 1687US6134813APlastic moldboard plowBERKMAN LOUIS CO·Filed 1998·Granted Oct 24, 2000·51 cites·33 claims
- 1787US4987716ARoofing system using standing seam jointsBERKMAN LOUIS CO·Filed 1989·Granted Jan 29, 1991·68 cites·9 claims
- 1886US5491036ACoated stripBERKMAN LOUIS CO·Filed 1995·Granted Feb 13, 1996·43 cites·38 claims
- 1986US4803790APlastic moldboards for snow plows and the likeBERKMAN LOUIS CO·Filed 1988·Granted Feb 14, 1989·63 cites·24 claims
- 2085US5184913AWatercraft launching and lift assembly and kit thereforBERKMAN LOUIS CO·Filed 1992·Granted Feb 9, 1993·42 cites·18 claims
- 2184US6722590B2Sand/salt spreaderBERKMAN LOUIS CO·Filed 2002·Granted Apr 20, 2004·30 cites·22 claims
- 2284US6163985ASystem for controlling a snowplow and other vehicle accessoriesBERKMAN LOUIS CO·Filed 1999·Granted Dec 26, 2000·63 cites·40 claims
- 2384US6005300ALight harnessBERKMAN LOUIS CO·Filed 1998·Granted Dec 21, 1999·56 cites·45 claims
- 2484US5667849AMethod for coating a metal stripBERKMAN LOUIS CO·Filed 1996·Granted Sep 16, 1997·41 cites·69 claims
- 2583US6715703B2SpreaderBERKMAN LOUIS CO·Filed 2002·Granted Apr 6, 2004·35 cites·34 claims
- 2683US6138388APlug system for a snowplowBERKMAN LOUIS CO·Filed 2000·Granted Oct 31, 2000·30 cites·37 claims
- 2783US5314758AHot dip terne coated roofing materialBERKMAN LOUIS CO·Filed 1992·Granted May 24, 1994·41 cites·16 claims
- 2883US5199371ADeck structure for floating dockBERKMAN LOUIS CO·Filed 1991·Granted Apr 6, 1993·38 cites·37 claims
- 2982US5597656ACoated metal stripBERKMAN LOUIS CO·Filed 1995·Granted Jan 28, 1997·42 cites·77 claims
- 3082US4928617AModular float drum systemBERKMAN LOUIS CO·Filed 1989·Granted May 29, 1990·36 cites·7 claims
- 3181US6811891B2Corrosion-resistant coated metal and method for making the sameBERKMAN LOUIS CO·Filed 2003·Granted Nov 2, 2004·9 cites·37 claims
- 3281US5842649APrecision placement spreaderBERKMAN LOUIS CO·Filed 1997·Granted Dec 1, 1998·59 cites·51 claims
- 3381US5616424ACorrosion-resistant coated metal stripBERKMAN LOUIS CO·Filed 1995·Granted Apr 1, 1997·36 cites·126 claims
- 3479US6793154B2Spreader shieldBERKMAN LOUIS CO·Filed 2002·Granted Sep 21, 2004·25 cites·49 claims
- 3578US5491035ACoated metal stripBERKMAN LOUIS CO·Filed 1994·Granted Feb 13, 1996·36 cites·79 claims
- 3677US9096979B2Software application that allows a user to utilize a mobile device to control frozen precipitation treatment systemsBERKMAN LOUIS CO·Filed 2013·Granted Aug 4, 2015·5 cites·14 claims
- 3777US6398137B1Mount and feeder arrangement for a precision placement spreaderBERKMAN LOUIS CO·Filed 2000·Granted Jun 4, 2002·32 cites·60 claims
- 3877US6080497ACorrosion-resistant coated copper metal and method for making the sameBERKMAN LOUIS CO·Filed 1998·Granted Jun 27, 2000·53 cites·28 claims
- 3977US5397652ACorrosion resistant, colored stainless steel and method of making sameBERKMAN LOUIS CO·Filed 1993·Granted Mar 14, 1995·39 cites·23 claims
- 4076US5361519AControl pad for a snowplowBERKMAN LOUIS CO·Filed 1993·Granted Nov 8, 1994·51 cites·17 claims
- 4175US6858322B2Corrosion-resistant fuel tankBERKMAN LOUIS CO·Filed 2003·Granted Feb 22, 2005·8 cites·15 claims
- 4275US6186731B1Removable feedgateBERKMAN LOUIS CO·Filed 1999·Granted Feb 13, 2001·34 cites·4 claims
- 4375US5492772ABuilding material coatingBERKMAN LOUIS CO·Filed 1995·Granted Feb 20, 1996·21 cites·36 claims
- 4474US5988534ASpreader mount assemblyBERKMAN LOUIS CO·Filed 1998·Granted Nov 23, 1999·46 cites·37 claims
- 4574US5036608ASnowplow quick mount lift assemblyBERKMAN LOUIS CO·Filed 1990·Granted Aug 6, 1991·45 cites·9 claims
- 4672US6978952B2Sand/salt spreaderBERKMAN LOUIS CO·Filed 2004·Granted Dec 27, 2005·18 cites·41 claims
- 4772US6794060B2Corrosion-resistant coated metal and method for making the sameBERKMAN LOUIS CO·Filed 2003·Granted Sep 21, 2004·12 cites·90 claims
- 4872US6256909B1One plug system for a snowplowBERKMAN LOUIS CO·Filed 2000·Granted Jul 10, 2001·16 cites·35 claims
- 4971US5669531AConveyor for particulate materialBERKMAN LOUIS CO·Filed 1995·Granted Sep 23, 1997·34 cites·33 claims
- 5070US5075988ASnowplow quick mount lift assemblyBERKMAN LOUIS CO·Filed 1991·Granted Dec 31, 1991·38 cites·6 claims
Showing the top 50 of 90 patent records by PatentIndex Score.
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